Workstation boots, computer account is validated, and

user enters logon credentials

Receive data from Domain

Controller about User Account

 

 

 

Does the user

 

 

 

 

 

account contain a

Yes

 

 

 

User Profile path?

 

 

 

Is the server copy

 

 

 

 

 

available? See

 

 

 

 

 

flowchart

 

 

 

 

 

"Accessing Server-

 

 

 

No

based Profile"

No

 

Yes

 

 

 

 

 

 

Does user override

 

Flag as not available

 

 

 

 

by having selected

 

 

 

 

Yes

 

 

 

 

 

 

Local?

 

 

 

 

 

 

 

 

 

Set the Ignore Central internal

 

 

 

 

flag

 

No

Determine if local copy of profile is

 

 

 

 

 

available

 

 

Flag profile as mandatory or

 

 

 

 

 

 

roaming

 

 

 

 

 

Central not available;

 

Central is available;

Central not available;

Central is available;

local is available

 

local is available

local not available

local not available

 

 

Is the Ignore Central

 

 

 

 

 

 

flag set?

 

 

Is this a new

 

 

 

Yes

No

 

 

user?

 

Load local

 

Reconcile both

 

Yes

 

profile

 

 

by comparing

 

 

 

 

 

 

 

(continue to

time stamps

 

 

 

Part 2)

 

 

 

 

 

Issue the

No

 

 

 

Is the central

 

 

 

 

 

default

 

Yes

 

 

profile newer?

 

 

 

 

 

profile. Is

 

Load central profile

 

 

No

 

 

 

 

 

it

 

(continue to Part 2)

 

 

Is the local

 

available?

 

No

 

profile newer?

 

 

Flag profile

 

 

Yes

 

 

Load local profile

 

 

 

 

 

 

as a new

 

Is profile

 

(continue to Part 2)

 

 

local profile

 

 

 

 

mandatory?

No

(continue to

Load local version of

 

Download

Yes

 

Yes

Part 2)

profile

 

profile from

 

 

 

 

 

server

No

 

Return error

Flag profile to only

 

(continue to

 

 

 

 

save changes to local

 

Part 2)

 

 

Copy the default

Create temporary

profile at log off.

 

 

 

 

 

 

 

 

 

 

User Profile and

profile/local copy

Changes will not be

 

 

 

 

 

Ask user preference for

 

load (continue to

(continue to Part 2)

written to the profile

 

 

server or local copy

 

Part 2)

 

stored on the server.

 

 

 

 

 

and load

 

 

 

 

(continue to Part 2)

 

 

 

 

 

 

 

(continue to Part 2)

 

 

 

 

 

 

 

 

Flowchart 2. User Logon (Part 1)

86 Microsoft Windows NT Server White Paper

Page 94
Image 94
Microsoft Windows NT 4.0 manual Available? See

Windows NT 4.0 specifications

Microsoft Windows NT 4.0, released on July 29, 1996, marked a significant milestone in the evolution of Microsoft's operating systems. As the successor to Windows NT 3.51, this version brought a range of enhancements and features that appealed to both enterprise users and consumers.

One of the standout characteristics of Windows NT 4.0 was its introduction of the Windows 95 user interface, which significantly improved user experience and accessibility. This graphical interface made it easier for users to navigate the operating system, transitioning from the more complex interfaces of previous NT versions. The integration of familiar elements such as the Start menu and taskbar helped bridge the gap between professional and personal computing environments.

Windows NT 4.0 was built on a robust and secure architecture. It utilized the NT kernel, which provided improved multitasking and stability compared to its predecessors. This operating system was designed to handle multiple user sessions simultaneously, making it suitable for servers as well as workstations. The inherent stability of NT 4.0 made it a favorite in enterprise environments, particularly for critical applications and systems.

Another defining feature of NT 4.0 was its support for a wide range of hardware, making it versatile across various machine configurations. It included compatibility with numerous devices and peripherals, which facilitated its adoption in diverse settings.

In addition to user interface enhancements and hardware compatibility, Windows NT 4.0 introduced powerful networking capabilities. The operating system supported TCP/IP natively, alongside NetBEUI and IPX/SPX protocols. This meant that it could seamlessly integrate into existing network environments, providing essential services for file and printer sharing, domain management, and remote access through features like Remote Access Service (RAS).

Security was another key focus area for Windows NT 4.0. Built around security principles, it employed a discretionary access control system, allowing administrators to define user permissions and manage access to resources effectively. This was particularly appealing to businesses that needed to enforce strict security policies.

Windows NT 4.0 also included improved support for backup and recovery, through the inclusion of the NT Backup utility. The operating system allowed for the creation of scheduled backups and simplified data recovery processes, enhancing data integrity and reliability.

As NT 4.0 entered its later years, it laid the groundwork for future Windows operating systems, influencing the design of later versions, particularly Windows 2000. It combined user-friendly features with enterprise-level robustness, ultimately shaping expectations for modern operating systems across various industries.